HydroMaxx&reg; Flexible Non-Toxic BPA Free Translucent Colored Vinyl Tubing - Blue - 1/2" ID x 5/8" OD x 100 ft Translucent colored wall allows for easy inspection & flow visibility Very Flexible - ideal for working in confined areas. Permits installer to make smooth tight turns. Saves time and labor Shore A Hardness Resistant to Chemicals. Non-marking non-conductive and silicone free Smooth Inside and Outside - Allows Unrestricted Flow Non-Toxic PVC TubingCan be Steam Sterilized. Manufactured to FDA and USDA Standards